E101 Riboflavin (vitamin B2): Halal or Haram?

Halal

Vitamin B2, which doubles as a yellow-orange colour. E101 Riboflavin (vitamin B2) is Halal.

Often made by fermentation with microbes

Why it is Halal

It is grown by fermentation or made in a laboratory, not taken from an animal.

Where you meet it

Breakfast cereals, sauces, dairy desserts, vitamin drinks.

What to do in the shop

Nothing special to do for E101 itself. Read the rest of the list: a product is only as clear as its least clear ingredient.

A status here describes the additive in general, and a specific product can be different. The same number can be made from plant or animal material depending on the manufacturer, and the label does not say which.

Questions people ask

Is E101 Halal?

Yes. E101 Riboflavin (vitamin B2) is Halal: it raises no animal-source question. The rest of the ingredient list still decides the product.

What is E101 made from?

It is grown by fermentation or made in a laboratory, not taken from an animal.

Products we checked that contain E101

Related additives

See all E-numbers →

Read this in Turkish: E101 helal mi? →

Products we asked the manufacturer about →

Check a product, not just a number

An additive's status describes the additive in general. What matters is the whole ingredient list on the packet in your hand.

This is information, not a fatwa. These statuses combine published scholarly positions with ingredient analysis, and they can be incomplete or out of date. For anything that matters, confirm with the manufacturer and with a qualified authority.